Industrial Technology Research Institute

Tsai-Lin Tai

Ren-Jr Chen

Chun-Chuan Lin

Chang-Lung Hsiao

Lung-Pin Chung

Chen-Yang Huang

Hsiu-Hsiang Chen

Chao-Kai Hsu

A light communication system, a transmitter and a receiver are provided. The light communication system includes the transmitter and the receiver. The transmitter has a first processing unit and a light-emitting element. The first processing unit produces a transmission signal. The light-emitting element produces light to carry the transmission signal. The receiver has a first variable lens, a photosensitive element and a second processing unit. The first variable lens changes the propagation path of the light. The photosensitive element senses the light passed through the first variable lens to produce a receiving signal. The second processing unit controls the first variable lens based on the signal quality of the receiving signal to change the equivalent channel between the transmission signal and the receiving signal. Therefore, the transmission capability of the light communication system is enhanced.

Light communication system, transmitter and receiver

A flexible light source module including a flexible substrate, a flexible light guide film and a plurality of point light sources is provided. The flexible light guide film including light-guiding portions is disposed on the point light sources. Each of the light-guiding portions includes a light incident surface and a light emitting surface. The light incident surface includes light incident sub-surfaces. The light emitting surface includes light emitting sub-surfaces, and the one closest to the geometric center of the light-guiding portion is a first light emitting sub-surface. The absolute values of the tangent slopes of the first light emitting sub-surface are ascending with approaching the geometric center of the light-guiding portion. The light beams emitted from the point light sources exit out of the flexible light source module via the flexible light guide film so that the flexible light source module provides a uniform planar light source.

Flexible light source module

Growing community of inventors

Hsinchu, Taiwan

Tsai-Lin Tai